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51 Sheets-Sheet 3 Filed Sept 18", 1951 H. J. CHALL- MULTIPLIER CONTROL MECHANISM FOR A SHORT Aug, 25, 1964 CUT MULTIPLICATION MACHINE 51 Sheets-Sheet 4 Filed Sept. 18, 1961 ii'llllik z- 25, 1964 H. J. CHALL MULTIPLIER CONTROL MECHANISM FOR A SEQRT cur MULTIPLICATION MACHINE 51 Sheets-Sheet 5 Filed Sept. 18, 1961 Aug. 25, 1964 CHALL 3,145,923

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MULTIPLIER CONTROL MECHANISM FOR A SHORT CUT MULTIPLICATION MACHINE Filed Sept. 18, 1961 51 Sheets-Sheet 9 Aug. 25, 1964 H. J. CHALL MULTIPLIER CONTROL MECHANISM FOR A SHORT CUT MULTIPLICATION MACHINE 51 Sheets-Sheet 10 Filed Sept. 18, 19 1 FIE |B FIIE| lEI FIEI EIII Aug. 25, 1 H. J. CHALL MULTIPLIER CONTROL MECHANISM FOR 'A SHORT -CUT MULTIPLICATION MACHINE Filed Sept 1s 1961 51 Sheets-Sheet 11 Aug. 25, 1964 H. J. CHALLY MUELTIPLIER CONTROL MECHANISM FOR A SHORT cu'r MULTIPLICATION MACHINE 51 Sheets-Sheet 12 Filed Sept. l8 1961 i in,

mm m-HNH Aug. 25, 1964 H. .1. CHALL- MULTIPLIER CONTROL MECHANISM FOR A SHORT cu'r MULTIPLICATION MACHINE 51 Sheets-Sheet 13 Filed Sept. 18, 1961 Aug. 2 1964 H. J. CHALL MULTIPLIER CONTROL. MECHANISM FOR A SHORT CUT MULTIPLICATIQN MACHINE 51 Sheets-Sheet 14 Filed Sept. 18, 1961 Aug. 25, 1964 J, CHALL MULTIPLIER CONTROL MECHANISM FOR A SHORT 3 OUT MULTIPLICATION MACHINE Filed Sept. 18 1961 51 Sheets-Sheet 15 QQE 3S Aug. 25, 1964 H. J. CHALL MULTIPLIER CONTROL MECHANISM FOR A SHORT CUT MULTIPLICATION MACHINE 51 Sheets-Sheet 16 Filed Sept. 18, 1961 EN $5 N5 QQEPNM QQ Aug- 25, 1964 I H. J.-CHALL CONTR MULTIPLIC R A SHORT OF. MECHANISM ATION MAC MULTIPLIER CUT Filed Sept. 18 1961 51 Sheets-Sheet l7 wh m I 1 I 1 HQJ. CHALL MULTIPLIER CONTROL MECHANISM FOR A SHORT CUT MULTIPLICATION MACHINE Aug. 25, 1964 Filed Sept. 18; 1961' 51 Sheets-Sheet l8 W%% ///.//v/ H D 75/ z 83E Q E:

Aug. 25, 1964 H. J. CHAL L MULTIPLIER CONTROL MECHANISM FOR A SHORT CUT MULTIPLICATION MACHINE 51 Sheets-Sheet 19 Filed-Sept. l8, 1961 H. J. CHALL MULTIPLIER CONTROL MECHANISM FOR A SHORT cur MULTIPLICATION MACHINE Fild Sept. 18, 1961 51 Sheets-Sheet 2O 

1. IN A MULTIPLYING CALCULATING MACHINE, SEPARATE MEANS FOR REGISTERING A DIGIT OF EACH ORDER OF A MULTIPLIER, CONTROL MEANS RESPONSIVE SEPARATELY TO EACH DIGIT SO REGISTERED FOR CONTROLLING DIGITATION IN ACCORDANCE WITH SAID DIGITS ORDER-BY-ORDER, SAID CONTROL MEANS INCLUDING MEANS FOR COUNTING SUCH DIGITATIONS, THE IMPROVEMENT WHEREIN SAID COUNTING MEANS PROVIDES A COUNTING OVERSTROKE AFTER THE LAST COUNT FOR EACH SAID ORDER OF THE MULTIPLIER, AND MEANS RESPONSIVE TO SAID OVERSTROKE FOR INITIATING THE TRANSFER OF 